I am running a test install for migrating from an older install on Centos 7 and have resolved this issue on my new containers running Almalinux 9 by enabling CRB (CodeReady repos for non-RHEL distros like Rocky and Almalinux)  I believe that the "RHEL/CentOS 8 equivalent was called 'PowerTools' to avoid the trademark issues associated with using the 'CodeReady' name.

This has allowed me to move past the issue you have observed.  I hope you have resolved this issue already, however, if not then this may help you.

(dnf config-manager --enable crb)

Using minimal install of server.

Getting following error.

Problem: package carbonio-mta-4.1.4-1.el8.x86_64 from zextras requires carbonio-amavisd, but none of the providers can be installed
- package carbonio-amavisd-2.13.1-1.el8.x86_64 from zextras requires carbonio-perl-convert-uulib, but none of the providers can be installed
- cannot install the best candidate for the job
- nothing provides carbonio-perl-io-socket-inet6 needed by carbonio-amavisd-2.13.0-1.el8.x86_64 from zextras
- nothing provides carbonio-perl-unix-getrusage needed by carbonio-amavisd-2.13.0-1.el8.x86_64 from zextras
- nothing provides carbonio-perl-io-socket-inet6 needed by carbonio-amavisd-2.12.2-2.el8.x86_64 from zextras
- nothing provides carbonio-perl-unix-getrusage needed by carbonio-amavisd-2.12.2-2.el8.x86_64 from zextras
- nothing provides carbonio-perl-net-libidn needed by carbonio-amavisd-2.12.2-2.el8.x86_64 from zextras
- nothing provides perl-common-sense needed by carbonio-perl-convert-uulib-1.8-3.el8.x86_64 from zextras
- nothing provides carbonio-perl-io-socket-inet6 needed by carbonio-amavisd-2.13.0-3.el8.x86_64 from zextras
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
. removed link : line 40: carbonio-bootstrap: command not found
. removed link : line 45: service-discover: command not found
gpg: can't open ' removed link ': No such file or directory

Thanks

SN